Combined time domain reflectometry and AC-impedance spectroscopy of fiber-reinforced fresh-cement composites

Leta Y. Woo, Neil J. Kidner, Supaporn Wansom, Thomas O Mason*

*Corresponding author for this work

Research output: Contribution to journalArticle

11 Scopus citations

Abstract

Time domain reflectometry and conventional AC-impedance spectroscopy were combined to investigate the impedance response of fiber-reinforced fresh-cement composites over a broad frequency range (0.1 Hz to 1 GHz). With proper attention to inductive effects at high frequency, conventional AC-IS can be employed to evaluate important fiber dispersion issues (fiber orientation, segregation, and clumping) in fresh-cement matrix composites.

Original languageEnglish (US)
Pages (from-to)89-95
Number of pages7
JournalCement and Concrete Research
Volume37
Issue number1
DOIs
StatePublished - Jan 1 2007

Keywords

  • Composite
  • Dispersion
  • Electrical properties
  • Fiber reinforcement
  • Fresh concrete

ASJC Scopus subject areas

  • Building and Construction
  • Materials Science(all)

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